SafetyQuestion 464 of 521
An unqualified worker must walk past an open 480V panel with exposed live parts to reach a work area. What must happen?
a.They must stay outside the limited approach boundary unless continuously escorted by a qualified person and using appropriate PPE
b.Crossing the arc flash boundary is perfectly fine for them
c.They may cross the restricted approach boundary since it is only 480V
d.There are no restrictions at all for 480V equipment
Explanation
Unqualified persons must stay outside the limited approach boundary unless escorted by a qualified person and protected with appropriate PPE. They are never allowed to cross the restricted approach boundary, and 480V exposed parts absolutely carry shock and arc-flash hazards that require these restrictions.
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